Mocking protected members with Moq
If you're familiar with Moq, you know that it relies on lambda expressions heavily. This is very good as you get full support from intellisense and refactoring features in Visual Studio. However, it also means you're for the most part restricted to setting expectations on things that your code has access too (public or internal members).
This is especially annoying with protected members, which are very common in template method pattern, factory methods, etc. In this case, you can't simply set an expectation with a lambda expression, as you have no access from the "outside" to the protected member. Being an important scenario, though, we wanted to add support for it....